newman



(No Model.)

C. H. NEWMAN,

STEAM PACKING.

No. 277,151. Patented May 8,1883.

WITWESSES 1N VEJvToR NITED STATES PATENT Urraca.

STEAM-PACKING.

SPECIFICATION forming part of Letters Patent No. 277,151, dated May v8, 1883. Application filed February 20, 1883. (No model.)

.To all whom it may concern:

Beit known that I, C. H. NEWMAN, of Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Steam-Packin g 5 and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked4 thereon, which form part of this speciiication, in which- Figure l is a diametrical section through the stuffing-boxV of a steam-cylinder and my improved packing. Fig. 2 is an external view of the packing and a diametrical section through the stuffing-box and its gland. Fig. 3 is a cross-section taken through Figs. 1 and 2 in the plane indicated by dotted lines x.

The object of my invention is to improve metallic steam-packing which is especially designed for the Vstuffing-boxes of steam inachinery, and the nature of it consists in a novel construction and combination of split and solid packing-rings and a coiled spring with a stuing-box and adjustable gland, as will be fully understood from the following description when taken in connection with the annexed drawings.

A designates a stuffing-box, which is bored out so as to leave a shoulder, a, near one end, against which abuts a coiled spring, B. The opposite end ot' the box A is screw-tappeti, and has fitted into it a gland, C, the central bore of which receives a rod, D, which may be the piston-rod or aslide valve rod ot' a steamengine cylinder. Inside of the stuffing-box A, and applied on the cylindrical rod D, are a number of rings, as shown in Figs. l and 2 of the drawings. The two rings E E' may be made of steel, and the rings F F' may be made of brass. The ring E is the frustum of a cone, the base of which is held in contact with the inner tlat end of the gland G. `Ihis ring E is split at b, and fitted within its cylindrical bore is another split ring, e, the split ot' which breaks joints with the split b ot' the external ring, and is held in its position by means of a dowel-pin, g, applied to the solid ring F, which is interposed Abetween the rings E and E. The solid ring F has fiat ends, against which impinge the-corresponding ends of the said split rings E E'. The ring E is a split ring,

and has iitted in it another split ring, f', which y slightly larger in diameter than the diameter of the rod D, so that this ring can freely accommodate itself' to the convex surfaces h of the rings E'f', like the movements of a balland-socket joint. The object of this ballandsocket adjustment of the ring F' is not only to prevent it frombinding, but to take the uneven pressure from the coiledspring B, which holds the rings in place when relieved of steampressure, and also in a degree assists the direct steam-pressure. -A

It is obvious from what I have above described that the'split rings will actras an excellent packing for the rod D, and that they are very durable. 4

Having thus fully described my invention,

what I claim as new, and desire to secure by Letters Patent, is-

l. In a metallic steam-packing, the combination, with rod D and box A, of solid ring F', having one of its sides concaved, split ring E', having its adjacent side beveled, the lat- -ter resting in the former, solidring F, split conical ring E, and gland C, allconstructed and arranged to operate as and for the purposes set forth.

2. In a metallic steam-packing, the combination, with rod D and box A, of the split conical ring E, its inclosed ring c, the solid ring F, dowel-pin g, split rings E'f', solid ring F', and a coiled spring, all constructed and adapted to operate substantially as and for the purposes set forth.

ssv

In testimony that I claim the foregoing as l my own I aix my signature in presence of two witnesses.

CHARLES H. NEWMAN. Witnesses:

J oHN J. SNELL, DELos WENTWOR'IH. 

